That’s right, a source says things just “happened” between the two — while Miranda was still dating East! Was this the cause of their breakup??

Because it may have been the cause of Felker’s!

See, Evan is a married man. After a month of touring, Felker filed for divorce from his wife Staci Nelson in February. Apparently she filed a couple weeks later in March — maybe with a different story?

RadarOnline not only has a source confirming Felker left his wife for Lambert; they also got their hands on Nelson’s filing, which reads:

“Petitioner alleges that a state of complete and irreconcilable incompatibility has arisen between the parties, by virtue of Respondent’s abandonment of Petitioner, which has completely destroyed the legitimate aims of the marriage and rendered its continuation impossible.”

In other words, he left her for his new country star mistress, so she had to file. A source told Us:

“Staci had no other choice but to file for divorce. She was devastated.”

Eesh. This does not look good for Miranda.

In fact, it makes us rethink the divorce with Blake. Hmm… One thing seems for sure: